Carburetor and some fuel leak:

If your carburetor ever gives you problems take the following steps, it is normal for the gas bowl to be half full this is normal. Your gas jet needle located inside the carb may be clogged with foreign matter ,I have experienced this problem several times with these cabs. It is highly unlikely that the gas is leaking from the seam,I've never seen this happen. And I've been putting these bikes together for years. Several Options,The carb is most likely dripping gas from your air filter,the float is most likely stuck. I am sure there may be dirt in your gas jet needle get a sewing pin needle and stick it in and out of the jet needle located inside the carb, to clear and dirt inside the needle.(I Know it sounds that it may not work but trust me it will) .

Also bend the horse shoe 'U' ring inside the carb downward a bit. This will prevent the bowl from overflowing with gas(You do not want it over flowing)because it will come out of the air filter and drip downward. It is normal for the gas bowl to be half fill because pressure from inside the cab brings the gas flow to the combustion chamber. (I've been rebuilding car motors for years as a hobby also, and jet needles act the same way in cars.But we have additives to prevent this in cars not (2) cylinder motors) Also where you attached your clutch lever cable to the top of the cab (initially) into the brass cylinder,this needle has an adjustment to it the small 'C' clip attached to it.moving this 'C' clip up it reduces to flow of gas down increases the flow of gas. Any dirt from the gas getting into the carb/needles. will hold the float valve open. Sometimes the fuel line itself may be leaking making it look the the seam is leaking, this is common with these fuel lines. Use a little silicone on the external gas jet needle head and around the fuel line on contact it Will prevent any leaks. If all fails you were one of the unlucky ones and got a bad float needle seat, with your carb. I have had this problem more then once. But try the recommendations above first.These carbs are about $16/18 dollars.

Do not use kill switch: uninstall that, because it damages your delco. Instead adjust your carb so it Idles the lowest and engine turns off, all you have to do is start engine after traffic lights, which is much better Idle and seating there waiting while your engine is getting hotter and smoking away.

Two Stroke Engine Combustion.

Performance Carburetor apart:

Adjusting Carburetor Cable:

Righty Tighty, Lefty Loosy.turn the adjusting nut right it will start going inside, so it is getting more room for the cable, therefore it will loose the cable and it will slow down your idle. if you turn Left it will start coming up, and tension will get tighter on cable, so your idle will get higher speed, and cable will be very tight.So adjust your carburetor adjusting nut so cable has about 2 mm loose in its barrel.Also on your throttle handle there is another adjusting bolt that you can adjust your carburetor and its cable.